Exit Zen
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```c++ bool insert(value_type&& obj); bool insert(init_type&& obj); ```
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Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; A call of the form `insert(x)`, where `x` is equally convertible to both `value_type&&` and `init_type&&`, is not ambiguous and selects the `init_type` overload.
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```c++ insert_return_type insert(node_type&& nh); ```
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```c++ template<class... Args, class F> bool emplace_or_visit(Args&&... args, F&& f); template<class... Args, class F> bool emplace_or_cvisit(Args&&... args, F&& f); ```
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```c++ template<class F> bool insert_or_visit(const value_type& obj, F f); template<class F> bool insert_or_cvisit(const value_type& obj, F f); template<class F> bool insert_or_visit(const init_type& obj, F f); template<class F> bool insert_or_cvisit(const init_type& obj, F f); ```
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```c++ template<class F> bool insert_or_visit(value_type&& obj, F f); template<class F> bool insert_or_cvisit(value_type&& obj, F f); template<class F> bool insert_or_visit(init_type&& obj, F f); template<class F> bool insert_or_cvisit(init_type&& obj, F f); ```
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Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; In a call of the form `insert_or_[c]visit(obj, f)`, the overloads accepting a `value_type&&` argument participate in overload resolution only if `std::remove_reference<decltype(obj)>::type` is `value_type`.
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```c++ template<class F> insert_return_type insert_or_visit(node_type&& nh, F f); template<class F> insert_return_type insert_or_cvisit(node_type&& nh, F f); ```
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```c++ template<class... Args, class F1, class F2> bool emplace_and_visit(Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool emplace_and_cvisit(Args&&... args, F1&& f1, F2&& f2); ```
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```c++ template<class F1, class F2> bool insert_and_visit(const value_type& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(const value_type& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_visit(const init_type& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(const init_type& obj, F1 f1, F2 f2); ```
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```c++ template<class F1, class F2> bool insert_and_visit(value_type&& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(value_type&& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_visit(init_type&& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(init_type&& obj, F1 f1, F2 f2); ```
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Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; In a call of the form `insert_and_[c]visit(obj, f1, f2)`, the overloads accepting a `value_type&&` argument participate in overload resolution only if `std::remove_reference<decltype(obj)>::type` is `value_type`.
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```c++ template<class F1, class F2> insert_return_type insert_and_visit(node_type&& nh, F1 f1, F2 f2); template<class F1, class F2> insert_return_type insert_and_cvisit(node_type&& nh, F1 f1, F2 f2); ```
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```c++ template<class... Args> bool try_emplace(const key_type& k, Args&&... args); template<class... Args> bool try_emplace(key_type&& k, Args&&... args); template<class K, class... Args> bool try_emplace(K&& k, Args&&... args); ```
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```c++ template<class... Args, class F> bool try_emplace_or_visit(const key_type& k, Args&&... args, F&& f); template<class... Args, class F> bool try_emplace_or_cvisit(const key_type& k, Args&&... args, F&& f); template<class... Args, class F> bool try_emplace_or_visit(key_type&& k, Args&&... args, F&& f); template<class... Args, class F> bool try_emplace_or_cvisit(key_type&& k, Args&&... args, F&& f); template<class K, class... Args, class F> bool try_emplace_or_visit(K&& k, Args&&... args, F&& f); template<class K, class... Args, class F> bool try_emplace_or_cvisit(K&& k, Args&&... args, F&& f); ```
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```c++ template<class... Args, class F1, class F2> bool try_emplace_and_visit(const key_type& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_cvisit(const key_type& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_visit(key_type&& k, Args&&... args, F1&& f1, F2&& f2); template<class... Args, class F1, class F2> bool try_emplace_and_cvisit(key_type&& k, Args&&... args, F1&& f1, F2&& f2); template<class K, class... Args, class F1, class F2> bool try_emplace_and_visit(K&& k, Args&&... args, F1&& f1, F2&& f2); template<class K, class... Args, class F1, class F2> bool try_emplace_and_cvisit(K&& k, Args&&... args, F1&& f1, F2&& f2); ```
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```c++ template<class M> bool insert_or_assign(const key_type& k, M&& obj); template<class M> bool insert_or_assign(key_type&& k, M&& obj); template<class K, class M> bool insert_or_assign(K&& k, M&& obj); ```
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```c++ template<class ExecutionPolicy, class F> void erase_if(ExecutionPolicy&& policy, F f); ```
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```c++ node_type extract(const key_type& k); template<class K> node_type extract(K&& k); ```
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```c++ template<class F> node_type extract_if(const key_type& k, F f); template<class K, class F> node_type extract_if(K&& k, F f); ```
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